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80167a8a WC |
1 | /* |
2 | * QEMU memory mapping | |
3 | * | |
4 | * Copyright Fujitsu, Corp. 2011, 2012 | |
5 | * | |
6 | * Authors: | |
7 | * Wen Congyang <wency@cn.fujitsu.com> | |
8 | * | |
fc0608ac SW |
9 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
10 | * See the COPYING file in the top-level directory. | |
80167a8a WC |
11 | * |
12 | */ | |
13 | ||
14 | #ifndef MEMORY_MAPPING_H | |
15 | #define MEMORY_MAPPING_H | |
16 | ||
1de7afc9 | 17 | #include "qemu/queue.h" |
4e27e765 | 18 | #include "exec/cpu-common.h" |
80167a8a | 19 | |
5ee163e8 LE |
20 | typedef struct GuestPhysBlock { |
21 | /* visible to guest, reflects PCI hole, etc */ | |
22 | hwaddr target_start; | |
23 | ||
24 | /* implies size */ | |
25 | hwaddr target_end; | |
26 | ||
27 | /* points into host memory */ | |
28 | uint8_t *host_addr; | |
29 | ||
1fbeff72 PX |
30 | /* points to the MemoryRegion that this block belongs to */ |
31 | MemoryRegion *mr; | |
32 | ||
5ee163e8 LE |
33 | QTAILQ_ENTRY(GuestPhysBlock) next; |
34 | } GuestPhysBlock; | |
35 | ||
36 | /* point-in-time snapshot of guest-visible physical mappings */ | |
37 | typedef struct GuestPhysBlockList { | |
38 | unsigned num; | |
eae3eb3e | 39 | QTAILQ_HEAD(, GuestPhysBlock) head; |
5ee163e8 LE |
40 | } GuestPhysBlockList; |
41 | ||
80167a8a WC |
42 | /* The physical and virtual address in the memory mapping are contiguous. */ |
43 | typedef struct MemoryMapping { | |
a8170e5e | 44 | hwaddr phys_addr; |
4e27e765 | 45 | vaddr virt_addr; |
80167a8a WC |
46 | ram_addr_t length; |
47 | QTAILQ_ENTRY(MemoryMapping) next; | |
48 | } MemoryMapping; | |
49 | ||
6d4d3ae7 | 50 | struct MemoryMappingList { |
80167a8a WC |
51 | unsigned int num; |
52 | MemoryMapping *last_mapping; | |
53 | QTAILQ_HEAD(, MemoryMapping) head; | |
6d4d3ae7 | 54 | }; |
80167a8a WC |
55 | |
56 | /* | |
57 | * add or merge the memory region [phys_addr, phys_addr + length) into the | |
58 | * memory mapping's list. The region's virtual address starts with virt_addr, | |
59 | * and is contiguous. The list is sorted by phys_addr. | |
60 | */ | |
61 | void memory_mapping_list_add_merge_sorted(MemoryMappingList *list, | |
a8170e5e AK |
62 | hwaddr phys_addr, |
63 | hwaddr virt_addr, | |
80167a8a WC |
64 | ram_addr_t length); |
65 | ||
66 | void memory_mapping_list_free(MemoryMappingList *list); | |
67 | ||
68 | void memory_mapping_list_init(MemoryMappingList *list); | |
69 | ||
5ee163e8 LE |
70 | void guest_phys_blocks_free(GuestPhysBlockList *list); |
71 | void guest_phys_blocks_init(GuestPhysBlockList *list); | |
c5d7f60f | 72 | void guest_phys_blocks_append(GuestPhysBlockList *list); |
5ee163e8 | 73 | |
56c4bfb3 LE |
74 | void qemu_get_guest_memory_mapping(MemoryMappingList *list, |
75 | const GuestPhysBlockList *guest_phys_blocks, | |
76 | Error **errp); | |
c517076d | 77 | |
2b05ab52 | 78 | /* get guest's memory mapping without do paging(virtual address is 0). */ |
56c4bfb3 LE |
79 | void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list, |
80 | const GuestPhysBlockList *guest_phys_blocks); | |
2b05ab52 | 81 | |
783e9b48 WC |
82 | void memory_mapping_filter(MemoryMappingList *list, int64_t begin, |
83 | int64_t length); | |
84 | ||
80167a8a | 85 | #endif |